package com.hdy.springcloud.controller;

import com.hdy.springcloud.mapper.Dept;
import com.hdy.springcloud.service.DeptService;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.web.bind.annotation.*;


//提供Restful服务！
@RestController
public class DeptController {

    @Autowired
    private DeptService deptService;

    //获取一些配置的信息，得到具体的微服务！
    @Autowired
    private DiscoveryClient client;

    @GetMapping("/dept/get/{id}")
    @HystrixCommand(fallbackMethod = "hystrixGet")
    public Dept get(@PathVariable("id") long id){

        Dept dept = deptService.queryDeptById(id);

        if(dept == null){
            throw new RuntimeException("id=>"+id+",不存在该用户,或者信息无法找到");
        }

        return dept;
    }


    //备选方法
    public Dept hystrixGet(@PathVariable("id") long id){
        return new Dept()
                .setDeptno(id)
                .setDname("id=>"+id+"没有对用的信息,null--@Hystrix")
                .setDb_source("no this database in MySQL");
    }

}
